{"title":"外部域上奇异超线性方程两个无穷解族的存在性","authors":"J. Iaia","doi":"10.58997/ejde.2024.06","DOIUrl":null,"url":null,"abstract":"In this article we study radial solutions of \\(\\Delta u + K(|x|) f(u) =0\\) inthe exterior of the ball of radius \\(R>0\\) in \\(\\mathbb {R}^{N}\\) with \\(N>2\\) where \\(f\\) grows superlinearly at infinity and is singular at \\(0\\) with \\(f(u) \\sim \\frac{1}{|u|^{q-1}u}\\) and \\(0<q<1\\) for small \\(u\\).We assume \\(K(|x|) \\sim |x|^{-\\alpha}\\) for large \\(|x|\\) and establish existence of two infinite families of sign-changing solutions when \\(N+q(N-2) <\\alpha <2(N-1)\\).\nFor more information see https://ejde.math.txstate.edu/Volumes/2024/06/abstr.html","PeriodicalId":0,"journal":{"name":"","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Existence of two infinite families of solutions for singular superlinear equations on exterior domains\",\"authors\":\"J. Iaia\",\"doi\":\"10.58997/ejde.2024.06\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this article we study radial solutions of \\\\(\\\\Delta u + K(|x|) f(u) =0\\\\) inthe exterior of the ball of radius \\\\(R>0\\\\) in \\\\(\\\\mathbb {R}^{N}\\\\) with \\\\(N>2\\\\) where \\\\(f\\\\) grows superlinearly at infinity and is singular at \\\\(0\\\\) with \\\\(f(u) \\\\sim \\\\frac{1}{|u|^{q-1}u}\\\\) and \\\\(0<q<1\\\\) for small \\\\(u\\\\).We assume \\\\(K(|x|) \\\\sim |x|^{-\\\\alpha}\\\\) for large \\\\(|x|\\\\) and establish existence of two infinite families of sign-changing solutions when \\\\(N+q(N-2) <\\\\alpha <2(N-1)\\\\).\\nFor more information see https://ejde.math.txstate.edu/Volumes/2024/06/abstr.html\",\"PeriodicalId\":0,\"journal\":{\"name\":\"\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0,\"publicationDate\":\"2024-01-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"\",\"FirstCategoryId\":\"100\",\"ListUrlMain\":\"https://doi.org/10.58997/ejde.2024.06\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"","FirstCategoryId":"100","ListUrlMain":"https://doi.org/10.58997/ejde.2024.06","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Existence of two infinite families of solutions for singular superlinear equations on exterior domains
In this article we study radial solutions of \(\Delta u + K(|x|) f(u) =0\) inthe exterior of the ball of radius \(R>0\) in \(\mathbb {R}^{N}\) with \(N>2\) where \(f\) grows superlinearly at infinity and is singular at \(0\) with \(f(u) \sim \frac{1}{|u|^{q-1}u}\) and \(0